[Features] easy to use [product information] The high-efficiency carbon filter adopts air regeneration and deodorization formula and activated carbon to effectively remove vehicle exhaust and air pollution. Give your family more comprehensive care Name:filter Packing list (you can get after purchasing one item): 1*filter Please understand: 1. Due to the long shipping time, the item may be damaged during the shipping process, if the item is damaged, please leave us a message through the official website immediately before posting comments, and I will solve the problem for you. 2. Due to manual measurement, the size may have an error of 1-3cm. 3. Colors may vary from monitor to monitor.